631697113 has 8 divisors (see below), whose sum is σ = 634630400. Its totient is φ = 628771248.

The previous prime is 631697107. The next prime is 631697117. The reversal of 631697113 is 311796136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 631697113 - 2⁵ = 631697081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631697117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230968 + ... + 233686.

It is an arithmetic number, because the mean of its divisors is an integer number (79328800).

Almost surely, 2^631697113 is an apocalyptic number.

It is an amenable number.

631697113 is a deficient number, since it is larger than the sum of its proper divisors (2933287).

631697113 is a wasteful number, since it uses less digits than its factorization.

631697113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711.

The product of its digits is 20412, while the sum is 37.

The square root of 631697113 is about 25133.5853590370. The cubic root of 631697113 is about 858.0309706945.

The spelling of 631697113 in words is "six hundred thirty-one million, six hundred ninety-seven thousand, one hundred thirteen".